CN104302199A - Thermo-fusible sheet material - Google Patents

Thermo-fusible sheet material Download PDF

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Publication number
CN104302199A
CN104302199A CN201380024600.5A CN201380024600A CN104302199A CN 104302199 A CN104302199 A CN 104302199A CN 201380024600 A CN201380024600 A CN 201380024600A CN 104302199 A CN104302199 A CN 104302199A
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Prior art keywords
hot melt
melt adhesive
polyurethane
mol
fabric
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Granted
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CN201380024600.5A
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CN104302199B (en
Inventor
斯蒂芬·特拉瑟
斯蒂芬·克雷姆瑟
比约恩·赫尔巴赫
马提亚斯·艾德勒
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Carl Freudenberg KG
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Carl Freudenberg KG
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • D04H1/62—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently at spaced points or locations
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
    • C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C09J175/06—Polyurethanes from polyesters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/21—Paper; Textile fabrics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/35—Heat-activated
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/568—Reaction products of isocyanates with polyethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/572—Reaction products of isocyanates with polyesters or polyesteramides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • D06M17/10—Polyurethanes polyurea
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/02—Linings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2170/00—Compositions for adhesives
    • C08G2170/20—Compositions for hot melt adhesives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2041—Two or more non-extruded coatings or impregnations

Abstract

The invention relates to a thermo-fusible sheet material particularly for use as a fusible interlining in the textile industry, and comprising a substrate layer that consists of a textile material that has an adhesive compound structure thereupon comprising a polyurethane hot-melt adhesive composition. The thermo-fusible sheet material is characterised in that it has a high degree of adhesive strength, particularly on outer fabrics that are difficult to fuse such as, for example, outer fabrics coated with fluorocarbon, silicone or polyurethanes.

Description

Hot melt adhesive fabric
The present invention relates to hot melt adhesive fabric, be especially used as improving SNR characteristic in field of textile industry and improve the adhesion lining cloth of machinability, the invention still further relates to the purposes of its making and the lining cloth as textile.
Lining cloth is the invisible skeleton of clothes, can ensure docile fit and comfortable and easy to wear.Depending on applicable cases, lining cloth contributes to improving machinability, improves performance and clothes are stablized.Except clothes, also these functions can be applied to industrial textile application, such as furniture, seat cushion and household textile industry.
The key property of lining cloth is pliability, resilience, feel, washable and nursing durability and base material abundant wearability in use.
Lining cloth can be formed by usually also scribbling the non-woven fabrics of sizing material, woven fabric, forming ring looped fabric or similar textile fabric; therefore usual by heating and/or pressure by lining cloth together with plus material hot melt bonding (adhesion lining cloth), lining cloth can be fitted on fabric like this.Depending on production method, various fabric all has different characteristics.Woven fabric is made up of the yarn of warp-wise and broadwise, and looped fabric is made up of the yarn being connected into fabric by eyelet stitch.Non-woven fabrics is combined into fibroreticulate single fiber by some is formed with machinery, chemistry or mode of heating.
If the non-woven fabrics of mechanical bond, then make fleece consolidation in the mode of mechanical interlocking fiber.For this reason or use needling technique, or utilizing water or steam to spray realizes tangling.Although acupuncture can produce soft product, feel rather unstable, makes this lining cloth technology can only be applied in quite special deserted field.In addition, mechanical needle acupuncture manipulation requires 50g/m usually 2above basis weight, this is Yan Taichong for most lining cloth application.
Water is utilized to spray the basis weight of non-woven fabrics of consolidation lower, but in general very smooth and have little elasticity.
When chemical adhesion non-woven fabrics, by dipping, spray or utilize other common coating processes to fleece coated with adhesive (such as acrylic ester adhesive), then solidified.Adhesive makes fiber to be combined with each other formation non-woven fabrics, but consequence to be product more stiff because adhesive distribution is among most of fleece, make fiber mutual bonding as in the composite.The change that cannot make up feel or pliability is selected by fiber blend or adhesive.
Heat seal non-woven fabrics is usually in pressing mode or by hot-air consolidation thus as lining cloth.For nonwoven lining cloth, now by point-like pressing consolidation ( kalanderverfestigung) as standard technique.Fleece is made up of the polyester or Fypro that aim at this process exploitation usually, makes its consolidation under utilizing the temperature of press about fiber melt, and a pressure roller of wherein press is carved with a line.This some line is such as by 64 point/cm 2form, such as, can have the sealing surfaces of 12%.If not lattice array, lining cloth will be plane consolidation, and feel is very hard.
The above-mentioned distinct methods making fabric is known already, in professional book and patent document, have description.
Usually being coated on sizing material majority on lining cloth can thermal activation, and is usually made up of thermoplastic polymer.Conventionally in a separate step sizing material can be coated on fabric.Known gluing technology is powder point method, slurry print method, dual dot, inspergation and hot melt normally, all has description in the patent literature.Think that two point coating is the most effective now, even if also can bond with fabric after nursing, and resistance to blocking can be fabulous.
This two point has double-decker, is made up of lower point and upper point.Lower point penetrates among base material, can be used as the barrier layer preventing sizing material from bleeding back, and can be used for fixing upper some particle.Common lower point is such as by adhesive and/or contribute to producing the thermoplastic polymer of bonding force when fusing and form.Depending on used chemicals, lower point, except contributing to being fixed on except in base material, also contributes to preventing sizing material from bleeding back as barrier layer.The upper point be made up of thermoplastic is main adhesive components in two-layer compound thing and is sprinkling upon on lower point as powder.After the process of shedding terminates, again suitably suck the powder that (between each point of lower floor) is unnecessary.Sinter subsequently, point (hot melt) is bonded on lower point, thus can as the adhesive between upper point.
Depending on the purposes of lining cloth, stamp the point of varying number, and/or change the geometry of rubber material using quantity or dot pattern.Such as coated weight is 9g/m 2, then count as CP 110; If coated weight is 11g/m 2, then count as CP 52.
What widely use also has slurry print method.Adopt during this technology and (be generally particle form with thermoplastic polymer, particle diameter <80 μm), thickener and glidant prepare water-borne dispersions, then usually utilizes ROTARY SCREAM PRINTING method it to be printed onto on basalis with point-like paste.Then the basalis after print is dried.
Knownly various different PUR can be used as the bonding medium of the heat bonding of lining cloth.Hotmelt or to be called for short PUR (Hotmelt) known already, usually refer to the product that there is no solvent, it is applied on adhesive surface in the blown state, quick solidification during cooling and form intensity very soon.Usual use thermoplastic polymer as PUR, such as polyamide (PA), copolyamide, polyester (PES), copolyesters, ethylene vinyl acetate (EVA) and copolymer (EVAC) thereof, polyethylene (PE), polypropylene (PP), amorphous polyalphaolefin (APAO), polyurethane (PU) etc.
PUR has adhesive effect mainly because thermoplastic polymer reversiblely can be melted into liquid melts, owing to reducing its viscosity by fusion process, therefore, it is possible to moistening surface to be bonded, thus forms the adhesion to this surface.PUR solidifies after cooling again, forms the solid with very high cohesion, and bonds with adhesive surface by this way.After bonding, even if cooling procedure has occurred Volume Changes and therefore define mechanical stress, viscoelastic polymer also can ensure to maintain adhesion.The cohesive force formed is exactly the adhesion between base cloth.
Use the shortcoming of traditional hot-melt adhesive to be, fusion temperature is usually higher, is therefore difficult to bond thermally sensitive base cloth, and due to the thermoplastic characteristics of polymer, the bonding strength formed when temperature improves can forfeiture rapidly.Polymer molecule is cross-linked with each other (chemical crosslinking) after solidification, a kind of effect after just suppressing.So just can reduce or avoid the cohesive force loss after temperature improves, and the adhesion of PUR remains unchanged.This kind of system in cooling procedure or after cooling chemical crosslinking occurring is called reactive hot-melt by people.Such as EP1333045A2, DE3231062A1, WO1993011200A1, DE10347628A, DE4339381A1, DE10027957C1, DE102004052756A1 and US20090242123A1 just describe reactive hot-melt.
Usually the sizing material based on polyamide or polyester is used at field of textiles.Such as, but these sizing materials are especially being difficult to that the fabric fused does not have sufficient adhesion, smooth polyamide fabric, heavy twist fabric, viscose fabric, and the fabric being coated with organosilicon, fluorine carbon or polyurethane.
The object of the present invention is to provide a kind of fabric had in conjunction with adhesive, described fabric even can be difficult on the fabric scribbling fluorine carbon or scribble polyurethane, to have sufficient adhesion on the fabric bonded, such as.In addition, this fabric also should utilize common Heat sealing machine to be easy to process, has fabulous feel and appearance characteristics, is convenient to produce with low cost, is having fabulous washability at 95 DEG C at the most, and can stand the very high cycle-index of drying condition.
Another object of the present invention is to, make fabric especially laterally have very high elasticity.
According to of the present invention, described object is achieved by following hot melt adhesive fabric, described fabric is especially used in textile industry and is used as adhesion lining cloth, described adhesion lining cloth has the basalis that textile material is formed, described basalis scribbles the sizing material structure comprising polyurethane hot melt adhesive composite, described hot-melt adhesive composition contains thermoplastic polyurethane, and described polyurethane is the product of following material:
-at least one difunctionality polyisocyanates (A), be preferably aliphatic, alicyclic or aromatics, isocyanate content is 5-65 weight portion, with
-at least one polyalcohol (B), described polyalcohol is selected from copolymer of PEPA, PPG, polycaprolactone polyol, polycarbonate polyol, polycaprolactone polyol and polytetrahydrofuran polyol and composition thereof, alternatively with
-at least one chain extender (C).
Be described in dependent claims and of the present inventionly preferably execute mode.
According to of the present invention, fabric has sizing material structure, and described sizing material structure comprises the hot-melt adhesive composition containing polyurethane.This sizing material structure can make fabric of the present invention especially being difficult on the fabric fused on such as heavy twist fabric, scribble on the fabric of fluorine carbon or polyurethane or have on the fabric of smooth surface there is very high adhesion.But these polyurethane adhesives also have adhesion like the polyamide or polyesters that use with routine on traditional fabric.In addition, using thermoplastic polyurethane can also realize fabulous washability and very high fabric elasticity surprisingly, is being laterally especially like this.Therefore this make it possible to use more stiff non-woven fabrics, and can not cause overall feel defect.In addition, also can give fabric very high elasticity by polyurethane coating merely, highly elastic fiber (such as BIKO fiber) or yarn need not be adopted.So just can produce the product with special characteristics, such as, based on the elastic waist lining cloth of traditional polyamide/polyester non-woven fabrics.
Use another advantage of thermoplastic polyurethane to be, fabric of the present invention has wonderful softness, elasticity, comfortable feel.The feel of lining cloth is an important test of textile industry.Especially basic organic silicone finishing agent is not advantageously used just can to realize comfortable feel.
Another advantage using thermoplastic polyurethane has the very large synthesis free degree.There is a large amount of monomer to can be used to synthesis of polyurethane, thus be convenient to the physical characteristic needed for adjustment, such as hardness, elasticity etc.
The PUR of use powder type preferably.Particle diameter depends on surface to be printed, the size of such as required binding site.If dot pattern, then particle diameter can change between >0 μ and 500 μ.The particle diameter of thermoplastic polyurethane is not uniform in principle, but follows a kind of distribution, namely there is a particle size range all the time.Particle diameter must distribute with required coating weight, some size and point and coordinate mutually.
Well imagine, can reactive hot-melt be used, such as, at room temperature in solid-state, fusible isocyanate terminated urethane prepolymer.Reactive hot-melt is suitable for using in 100-140 DEG C of temperature range, solidifies by cooling first physics, reacts subsequently chemocoagulation occurs with moisture.For the explanation of the latter's system, such as can See patent US20090242123A1, WO2011120895A1, WO2010068736A2 and WO1999028363A1.
But, the non-reacted PUR of preferential use in the present invention.Described non-reacted PUR such as can with film or powder type, and the especially preferred linear hydroxy endblocked polyurethane form in 60-190 DEG C of temperature range with the polyester segment of crystallization uses, and is solidified by cooling and recrystallization physics.
Non-reacted polyurethane hot melt can exist in powder form, and spreading method can be utilized to apply, and this is particularly suitable for the porous base cloth bonded for producing breathable fabric composite.Being also advantageous in that of spreading method, this is a kind of simple painting method being suitable for large-scale application.Because thermal activation powder (such as hydroxyl terminated polyurethane) just has viscosity at low temperatures, therefore it is suitable for laminating thermal sensitivity base cloth, such as fine fabrics.Owing to there being good flow behavior in an active state, even if so pressure is very low and the time of compression is very short, also can good combination be formed; And there is very little risk to penetrate fabric.
Be suitable for the C using isocyanate content for 5-65 weight portion 4-18aliphatic series and/or C 6-20alicyclic and C 6-20aromatic diisocyanates is as difunctionality polyisocyanates (A).Use the advantage of aliphatic polyisocyanate to be, can be used for producing the product of non yellowing.Use the advantage of aromatic polyisocyanate to be, it has good crystallizing power and good mechanical property.
Especially use 1 is applicable to, 4-bis-isocyanate group butane, 1, 6-bis-isocyanate group hexane (HDI), 2-methyl isophthalic acid, 5-bis-isocyanate group pentane, 1, 5-bis-isocyanate group-2, 2-dimethyl pentane, 2, 2, 4-or 2, 4, 4-trimethyl-1, 6-bis-isocyanate group hexane, 1, 10-bis-isocyanate group decane, 1, 3-and 1, 4-bis-isocyanate group cyclohexane, 1, 3-and 1, 4-pair-(isocyanatometyl)-cyclohexane, 1-isocyanate group-3, 3, 5-trimethyl-5-isocyanato methylcyclohexane (IPDI, IPDI), 4, 4 '-two isocyanate group-dicyclohexyl methyl hydride (H 12mDI, HMDI), 1-isocyanate group-1-methyl-4 (3) isocyanatometyl-cyclohexane and two-(isocyanatometyl)-norbornane and/or its isomer mixture and Toluene-2,4-diisocyanate, 4-vulcabond (TDI), 1, 5-naphthalene diisocyanate (NDI), 3, 3 '-dimethyl-4, 4 '-biphenylene diisocyanate (TODI), 2, 2 '-methyl diphenylene diisocyanate (2, 2 '-MDI), 2, 4 '-methyl diphenylene diisocyanate (2, 4 '-MDI), 4, 4 '-methyl diphenylene diisocyanate (4, 4 '-MDI) and/or its isomer mixture.
Fact proved, be particularly suitable for using aliphatic series and alicyclic diisocyanate 1, 4-bis-isocyanate group butane, 1, 6-bis-isocyanate group hexane (HDI), 2-methyl isophthalic acid, 5-bis-isocyanate group pentane, 1, 5-bis-isocyanate group-2, 2-dimethyl pentane, 2, 2, 4-or 2, 4, 4-trimethyl-1, 6-bis-isocyanate group hexane, 1, 10-bis-isocyanate group decane, 1, 3-and 1, 4-bis-isocyanate group cyclohexane, 1, 3-and 1, 4-pair-(isocyanatometyl)-cyclohexane, 1-isocyanate group-3, 3, 5-trimethyl-5-isocyanato methylcyclohexane (IPDI, IPDI), 4, 4 '-two isocyanate group dicyclohexyl methyl hydride (H 12mDI, HMDI), 1-isocyanate group-1-methyl-4 (3) isocyanate groups-hexahydrotoluene and two-(isocyanatometyl)-norbornane.
Polyisocyanates particularly preferably as A is 1,6-bis-isocyanate group hexane (HDI), 1-isocyanate group-3,3,5-trimethyl-5-isocyanato methylcyclohexane (IPDI, and 4,4 '-two isocyanate group dicyclohexyl methyl hydride IPDI).1,6-bis-isocyanate group hexane (HDI) is particularly preferably as the polyisocyanates of A.
The polyhydric alcohols being suitable as B in this way molecular weight be the PEPA of 400g/mol-6000g/mol, the copolymer that forms of the polycaprolactone polyol of the molecular weight PPG that is 400g/mol-6000g/mol, the molecular weight polycaprolactone polyol that is 450g/mol-6000g/mol, molecular weight to be the polycarbonate polyol of 450g/mol-3000g/mol and molecular weight be 800g/mol-4000g/mol and polytetrahydrofuran polyol.
Particularly preferably as the PEPA of the polyalcohol of B to be molecular weight be 1000g/mol-4000g/mol.These polyalcohols all have the good feature of mechanical property, especially relate to the mechanical property of elasticity, wearing and tearing, rebound characteristics, modulus value etc., and cost of material is lower simultaneously.
In the context of the present invention, PEPA refers to the polyester having more than one hydroxyl, preferably have two terminal hydroxy groups, can be prepared with known approach, such as, can be prepared with aliphatic hydroxy carboxylic acids or by aliphatic series and/or aromatic dicarboxylic acid and one or more dihydroxylic alcohols.
The raw material be suitable for such as has butanedioic acid, adipic acid, suberic acid, azelaic acid, decanedioic acid, dodecanedioic acid, glutaric acid, glutaric anhydride, phthalic acid, M-phthalic acid, terephthalic acid (TPA), phthalic anhydride, ethylene glycol, diethylene glycol, 1,4-butanediol, 1,6-hexylene glycol, neopentyl glycol and 6-caprolactone.
According to of the present invention, preferably use the PEPA being easy to crystallization.The crystalline polyester polyol be suitable for such as comprises has the straight diol of 4-8 carbon atom (preferably to have the carbon atom of even number based in the straight chain having 6-12 carbon atom in molecule, preferably non-crosslinked aliphatic dicarboxylic acid (routine adipic acid and dodecanedioic acid) and molecule, such as 1,4-butanediol and 1,6-hexylene glycol) PEPA.Based on the same particularly suitable of polycaprolactone derivatives of difunctionality starting molecule (such as 1,6-hexylene glycol).
Be suitable for the BDO-adipate ester using molecular weight to be 2000g/mol especially.
The chain extender being suitable as C is the aliphatic C of divalence 1-8alcohol, such as ethylene glycol, 1,2-PD, 1,3-PD, 1,3-BDO, BDO, 2,3-butanediol, cyclohexanedimethanol (CHDM) and 1,6-hexylene glycol.
Preferably there is as the chain extender of C the carbon atom of even number.Here 1,3-BDO, BDO, 2,3-butanediol and isomer mixture thereof and 1,6-hexylene glycol is related to.BDO and 1,6-hexylene glycol are particularly preferably as the chain extender of C.
Component A, B and C is preferably made to react to each other according to following number ratio: A=5-25 weight portion, B=100 weight portion, C=0.5-15 weight portion.
Mol ratio between polyisocyanates A and alcohol functionalized component (polyalcohol B and chain extender C) is suitable between 0.7 and 1.0, preferably between 0.9 and 1.0, and is suitable for especially between 0.94 and 0.98.
Control the fusing point of thermoplastic polyurethane mainly through the mol ratio between polyisocyanates A and alcohol functionalized component (polyalcohol B and chain extender C), because mol ratio departs from 1.0 far away, then macromolecular chain becomes shorter.For the thermoplastic polyurethane that fusing point is low especially, advantageously mol ratio can be adjusted between 0.7 and 0.9, preferably to adjust between 0.8 and 0.9 and the value more preferably adjusted between 0.85 and 0.89.
As those of skill will understand, mol ratio refers to the ratio of the molal quantity of isocyanate groups and the molal quantity of alcohol groups.Equimolar ratio refers to, the molal quantity of isocyanate groups is identical with the molal quantity of alcohol groups, and mol ratio is 1.0.If alcohol groups is excessive, then mol ratio is less than 1.0; If isocyanate groups is excessive, then mol ratio be greater than 1.0 value.The mol ratio being greater than 1.0 is not too suitable for polyurethane compositions of the present invention, because if isocyanate groups is excessive, then may there is free isocyanate-monomer.
Actual tests result indicates, particularly preferred result can be realized based on following non-reacted polyurethane hot melt adhesive composite: at least one isocyanate content is 5-50 weight portion, the difunctionality polyisocyanates (A) being preferably 5-25 weight portion and by B) PEPA and C) mixture that forms of the mixture of chain extender, described PEPA is preferably 1,6-hexylene glycol adipate ester, there is the hydroxyl value of 56 and the functional number of 2, described mixture of chain extenders is 1,4-butanediol and 2,3-butanediol proportionally 80:20.PEPA B) weight portion be suitably 100 weight portions.Advantageously, select the ratio of A and B+C, make the mol ratio of NCO and OH be 0.7-1.0, be preferably 0.9-1.0 and be more preferably 0.94-0.98.If need the application that fusing point is special low as previously discussed, be then suitable for value mol ratio adjusted between 0.85 and 0.89 especially.
The melting range of polyurethane hot melt adhesive composite is preferably 80-190 DEG C, is more preferably 90-150 DEG C, also will be more preferably 100-130 DEG C.
The MFI value of polyurethane hot melt adhesive composite is preferably [160 DEG C/2.16kg]: 1-200g/10 minute, is more preferably 5-120g/10 minute, also will be more preferably 10-80g/10 minute, measures according to DINISO 1133.Polyurethane hot melt adhesive composite can be prepared in batches in a simple manner decoupled, such as can according to the following stated:
Under 90 DEG C of vacuum conditions, exhaust in 2 hours and dehydration are carried out to polyalcohol.Then polyalcohol is heated to 100 DEG C, stirs successively and add catalyst, additive (such as anti-hydrolysis and antiaging agent) and chain extender.Finally stir and add polyisocyanates.Present generation exothermic reaction, the temperature of reactant mixture sharply raises.The viscosity of simultaneous reactions mixture proceeds along with reaction and constantly increases, and then when reaction temperature is stabilized in certain is similar to constant value after originally sharply raising, usually just can pour out reactant mixture.The single-order reaction of these components is referred to as single-step method.
If dosage is larger, be then applicable to being processed continuously by extruder.
In addition, fabric of the present invention also comprises basalis.Can require to select the textile material for basalis according to corresponding purposes or very special quality, what be applicable to use such as has woven fabric, knit goods or textile-like.Here the present invention does not specify any restriction in principle.Those skilled in the art are easy to find out the combination of materials being suitable for its application.Basalis is preferably made up of non-woven fabrics.
The line of non-woven fabrics and textile material or yarn can be made up of synthetic fibers, but also can be made up of natural fiber.Preferred use polyester fiber, Fypro, regenerated celulose fibre and/or binder fibre, as synthetic fibers, use wool or cotton fiber as natural fiber.
Described synthetic fibers comprise rollable, curling and/or non-crimping short fiber, and the long fibre be directly spun into of rollable, curling and/or non-crimping and/or limited fibre, as meltblown fibers.Basalis can be single or multiple lift structure.
The technology described in beginning can be used to produce non-woven fabrics.Can mechanically (traditional acupuncture, water-jet technology), utilize adhesive or make fibroreticulate fiber be combined into non-woven fabrics by heating power.Basalis has the non-woven fabrics intensity of appropriateness before printing, because when the mixture using adhesive and thermoplastic polymer to form prints, also will carry out adhesive treatment to basalis and make its consolidation.Also can obtain the non-woven fabrics intensity of appropriateness by the cheap fibrous raw material of use cost, precondition is that these fibrous raw materials must meet feel requirement.Also process control can be simplified.
If use short fiber, be then suitable for being carded to fleece with at least one carding machine.Here preferentially select disordered wet forming technology, but if special non-woven fabrics characteristic will be realized and/or wish to form multi-ply fibrous structure, also can be combined longitudinal lapping and/or horizontal lapping, or select more complicated carding machine device.
The fiber of fiber linear density 6.7dtex is at the most specially adapted to lining cloth.Usually larger line density is not used, because its fiber stiffness is very large.Preferentially select the fiber linear density in 1.7dtex region, but well imagine line density also can be selected to be less than the superfine fibre of 1dtex.
Described in a kind of preferred embodiment of the present invention, sizing material structure is designed to double-deck sizing material structure, and it comprises the bottom be directly laid on fabric, and to be arranged on bottom and to comprise the top layer of thermoplastic polyurethane hot melt adhesive composition.
Described bottom can contain adhesive and/or thermoplastic polymer.Adhesive of the present invention and/or thermoplastic polymer are preferably polyurethane, but so-called polyurethane binder refers to fusing point and is greater than 190 DEG C and do not contribute the polymer of bonding force when fusing in this case.This type of double-layer glue point has sizing material and bleeds back very little feature, because the layer containing adhesive first applied plays barrier function.If mix the thermoplastic polymer that fusing point is less than 190 DEG C to lower point, preferably mix polyurethane according to of the present invention, so except upper point, this polymer also contributes to bonding.But the adhesion phenomenon of lining cloth will worsen.
Adhesive can be the adhesive of acrylate, styrene-acrylate, ethylene-vinyl acetate, butadiene-propylene acid esters, SBR, NBR and/or polyurethane type, or the mixture of above-mentioned substance.Amount of binder in bottom is preferably in the scope of 5-70%.Preferably polyester-polyurethane, preferably aliphatic polyester polyurethane, especially above-described polyester-polyurethane should be used for adhesive equally, because these polyester-polyurethanes have fabulous film forming characteristics, and good Physical interaction (film forming) can be there is each other.The ability preventing adhesion can also be improved further by chemical crosslinking.If pliability and elasticity are not too important, it is favourable that so Here it is.Benefit such as compared with acrylate dispersoid be exactly that pliability and elasticity are higher, permanent elongation is less, crosslinking temperature is lower and with top polyurethane layer in conjunction with better.
The auxiliary agent that can also include and help adjust viscosity and pulp flow characteristic is put in dispersing liquid under this external water-based.The feel of lining cloth can be made to change in very wide scope by suitable adhesive ingredients.
Described in a kind of preferred embodiment of the present invention, top layer contains 0.1-20g/m 2thermoplastic polyurethane.Bottom is preferably containing 0.1-20g/m 2thermoplastic polyurethane.Described in the particularly preferred embodiment of one of the present invention, top layer and bottom are all preferably containing 2-15g/m 2thermoplastic polyurethane.Extra high lining cloth elasticity can be realized in this embodiment.
Well imagine, top layer and/or bottom also can comprise other thermoplastic polymer except thermoplastic polyurethane.The thermoplastic polymer being different from thermoplastic polyurethane such as can comprise the combination (mixture and chain growth addition copolymer) of polymer based on (being total to) polyester, (being total to) polyamide, polyolefin, ethylene vinyl acetate and/or described polymer, and coated weight is 0.1-20g/m 2.
The present inventor has found, suitably selects the composition of lower just can obtain the particularly preferred fabric of transverse elasticity.Actual tests result indicates, and the composition of lower point is obviously better than the composition of upper point on the impact of fabric transverse elasticity.
According to a kind of preferred embodiment, in bottom, polyurethane is used to be greater than the adhesive of 190 DEG C as fusing point and/or to use the fusing point thermoplastic polymer that is less than 190 DEG C as mentioned above.The feature of this polyurethane is that Shore hardness is very little and has very pliable and tough elastic construction.Polyurethane binder in bottom and/or thermoplastic polyurethane with pure form, and can not only exist as a mixture.Fact proved, if the polyurethane binder contained in point under polyurethane and/or thermoplastic polyurethane are 10-100% separately relative to the content of bottom gross mass, are suitably 30-100%, are preferably 60-100%, just can give fabric very high transverse elasticity.The polymer be applicable to for mixing especially comprises polyacrylate, ethylene vinyl acetate, butadiene-propylene acid esters, organosilicon, SBR styrene butadiene rubbers or acrylonitrile-butadiene rubber.Be preferred for the polymer especially self-crosslinking polyacrylates mixed with polyurethane.This self-crosslinking polyacrylates preferably has comparatively low Tg, is specially 0 DEG C to-20 DEG C.
Described in a kind of preferred embodiment, polyurethane binder formation aqueous pu dispersions that fusing point is greater than 190 DEG C.
Not only can use polyester dispersions, and polyether polyurethane dispersion can be used as dispersions of polyurethanes.Having compared with reduced TG transformation range and/or the application of polyurethane binder with good resistant to hydrolysis ability for needing, preferentially should select polyether polyurethane dispersion.For the application needing the polyurethane binder with good mechanical properties (such as wearing and tearing), preferentially polyester polyurethane dispersions should be selected.
Not only can use aromatic polyurethane dispersion, and aliphatic polyurethane dispersion can be used as dispersions of polyurethanes.But still preferentially select aliphatic polyurethane dispersion, because aliphatic isocyanate has color fastness to light.
The solids content of dispersions of polyurethanes can between 10-70%, preferably between 15-60%, more preferably between 20-60%, and also will more preferably between 30-50%.
Stabilizing polyurethane dispersion can be carried out by inner and/or external anions, cation or neutral emulsifier.
The pH value of dispersions of polyurethanes preferably within the scope of 4.0-11.0, more preferably within the scope of 5.0-10.0, also will more preferably within the scope of 6-9.
Ideally, polyurethane binder has the good feature of mechanical property after water evaporation and polyurethane particles film forming.If polyurethane binder has 50-85 Shore A, preferably 50-70 ShoreA and Shore hardness more preferably within the scope of 55-65 Shore A, be just suitable for being applied among bottom.Polyurethane binder is also suitable for having 400-1200%, preferably 600-1200% and maximum elongation at break more preferably within the scope of 800-1200%.The tensile strength of adhesive is relatively suitable within the scope of 20-45MPa, more preferably within the scope of 25-45MPa.
Polyurethane binder has good low temperature flexibility.In the glass transition ranges of the polyurethane scope below 10 DEG C, more preferably between-40 DEG C-+10 DEG C, and especially between-20 DEG C-0 DEG C.
Preferably can with traditional double-dot coating technology coating top layer and bottom.Polyurethane binder of dispersions of polyurethanes form can be used to form lower point.These can have the fusing point being greater than 190 DEG C, thus can not participate in bonding when fusing.The advantage put under this adhesive is, can be formed in a straightforward manner such as soft, inviscid, flexible, can film forming, compatible with other additive, fast light (non yellowing) adhesive under point.In addition, use polyurethane binder also can greatly improve and the combination of putting on polyurethane, thus improve the anti-stratification forces of paste system.The advantage put under adhesive is to make its physics or chemical crosslinking, thus greatly reduces adhesion.
Lower point can also be less than 190 DEG C containing fusing point thus contribute to the thermoplastic polymer of bonding when fusing.Containing thermoplastic polymer, preferably containing thermoplastic polyurethane, the binding effect especially contributing to upper point containing the lower point of aliphatic polyester polyurethane, but also can provide higher adhesion value.In lower point, use polyurethane that lower point can be made to have obviously better adhesion, anti-stratification forces can not only be improved, and can shed powder be reduced.Such as compared with polyamide, substantially improve the pull-out capacity with upper point, and elasticity and pliability higher.In addition, also contribute to improving the bonding force to coating fabric.
As previously mentioned, thermoplastic polyurethane can be mixed with such as common thermoplastic in upper point.Fact proved, PA, PES, PP, PE, ethylene vinyl acetate, copolymer etc. particularly suitable.Also thermoplastic polyurethane can be extruded jointly with other thermoplastic (mixing).
Also various different combination can be had in lower point.The combination of Common thermoplastic's plastics (PA/PES/ polyolefin, ethylene vinyl acetate, copolymer etc.) can be used, also can use the combination of common adhesive (acrylate dispersoid, silicone dispersion etc.).
For lining cloth field, preferably thermoplastic polyurethane is made into the pellet with good grindability.For upper part (being generally 80-200 μm) and lower point or slurry coating (0-80 μm), the grindability within these restrictions preferably should be had.Abrasive grains should have as far as possible round geometry, to ensure to shed or fusion and sintering do not have defect.
According to of the present invention, also other common methods in lining cloth field can be utilized to use TPU (thermoplastic polyurethane), such as powder point method, slurry print method, dual dot, shed method, hot melt, inspergation etc., for this reason suitablely use other domain size distribution or formula of size (thermoplastic polyurethane in slurry).
Well imagine, clear and legible phase boundary can be there is no equally between top polyurethane layer and polyurethane/adhesive bottom, such as the thermoplastic polymer of coated particle form and fusion with it adhesive such as dispersion and optionally other component time, this effect can be caused.Adhesive and thicker particle separation after coating, thicker particle will more multidigit on the end face of adhesive surface (such as putting surface).Adhesive, except can be bonded among basalis and except being bonded, also can to bond thicker particle, makes that substrate surface occurs particle simultaneously and is separated with the part of adhesive.The adhesive degree of depth is infiltrated among material, and particle is then gathered on the surface.As a result, although thicker polymer beads has been embedded among adhesive stroma, it freely can be used for directly bonding with fabric in (table) face in nonwoven surface simultaneously.This just causes forming the structure being similar to two point, but contrary with known dual dot, only needs one method step can produce this structure, also need not drop into high fund to suck excessive powder.The elasticity that lining cloth obtains by this way and resilience are higher than those lining cloth of the Common Polymers based on polyamide or polyester.
Preferably as previously discussed, using dot pattern by based on water-borne dispersions as lower point with shed powder and be coated on basalis as the two point of upper point, like this can the pliability of reinforcing material and resilience.Dot pattern can in rule or irregular distribution.But the present invention is not limited to dot pattern.Two point or slurry can be applied, such as, with following form: straight line, striped, netted or gridiron, have the point of the similar geometric such as rectangle, rhombus or ellipse according to arbitrary geometry.
A kind of method for optimizing preparing hot melt adhesive fabric of the present invention comprises following measures:
A) basalis is provided,
B) by surf zone selected by the sizing material structural applications that comprises polyurethane hot melt adhesive composite to basalis, described polyurethane hot melt adhesive composite contains the thermoplastic polyurethane of the product form of following material
-at least one difunctionality polyisocyanates (A), isocyanate content is 5-50 weight portion, is preferably 5-25 weight portion,
-at least one polyalcohol (B), described polyalcohol is selected from copolymer of PEPA, PPG, polycaprolactone polyol, polycarbonate polyol, polycaprolactone polyol and polytetrahydrofuran polyol and composition thereof, optional with
-at least one chain extender (C), and
C) to from step b) basalis that obtains heat-treats, is sintered together by thermoplastic polymer sintering on substrate surface or with it.
Preferably make sizing material structure be formed to have as mentioned above the double-deck sizing material structure of bottom and top layer.First on fabric, adhesive and/or the thermoplastic polymer of water-borne dispersions form is suitably applied, to form bottom.Then preferred to shed powder type at this applied atop thermoplastic polyurethane.
The basalis that can directly form in printing machine textile material or non-woven fabrics stamps sizing material structure.The textile auxiliary of thickener (such as partial cross-linked polyacrylate and salt thereof), dispersant, wetting agent, glidant, fabric feeling modifying agent and so on can be utilized before printing to carry out moistening basalis for this reason, or in any other manner it is suitably processed, make printing process more have production reliability.
The invention still further relates to the method using fabric of the present invention as the lining cloth of fusion on fabric, its air penetrability measured under 200Pa test pressure according to EN ISO 9237 is preferably less than 100dm 3/ s*m 2.
Fact proved, this fabric is particularly suitable for for fusion on fabric, and described fabric at least has the coating based on organosilicon, fluorine carbon or polyurethane towards that side of lining cloth.
According to of the present invention, various different fabric can be used.Fact proved, fabric of the present invention still can combine with the fabric being difficult to fuse, such as, through (oleophobic) PES fabric of hydrophobic finishing, cotton textiles or flax fabric (hydrophobic finishing) or the smooth fabric through coating process.
But hot melt adhesive fabric of the present invention is not limited to this application.Well imagine the application that also can have other, such as, as upholstered furniture, the fusion fabric strengthened in the household textiles of seat cushion mechanism, seat webbing and so on, or as there being the fusion fabric of expansion service in automotive trim, article of footwear or health/medical field.
Without loss of generality, below by use hot melt adhesive fabric of the present invention as the adhesion lining cloth of textile industry, the present invention will be described.
Embodiment
Embodiment 1
Preparation thermoplasticity TPU sizing material
Add in 3 liters of iron sheet barrels 1000.0g PEPA (BDO adipate ester, hydroxyl value: 56, degree of functionality: 2), then under 90 DEG C of vacuum conditions bleed station in carry out two hours exhaust and dehydration.Then utilize heating plate that polyalcohol is heated to 100 DEG C.Under abundant stirring, add 0.02g catalyst Dabco T95,33.1g successively by 1,4-butanediol and 2,3-butanediol proportionally 80:20 form mixture of chain extenders, 5.9g hydrolysis-resisting agent Stabaxol P200 and 140.0g isocyanates 1,6-hexamethylene diisocyanate.After adding vulcabond, start violent exothermic reaction, cause reaction temperature to raise rapidly, improve the viscosity of reactant mixture simultaneously.In such a scenario, reach be similar to constant temperature maximum after pour out reactant mixture.The content of metal bucket is poured among mold that Teflon film forms, and to place it on the heating plate of 100 DEG C.At 100 DEG C of temperature after 30 minutes, mixture complete reaction.
Obtain the polyurethane that Shore hardness is 85 ° of A, melting range is 105-115 DEG C.
Embodiment 2
Preparation thermoplasticity TPU sizing material
Add in 3 liters of iron sheet barrels 1000.0g PEPA (BDO adipate ester, hydroxyl value: 56, degree of functionality: 2), then under 90 DEG C of vacuum conditions bleed station in carry out two hours exhaust and dehydration.Then utilize heating plate that polyalcohol is heated to 100 DEG C.Under abundant stirring, add 0.02g catalyst Dabco T95,33.2g chain extender BDO, 5.9g hydrolysis-resisting agent Stabaxol P200 and 140.0g isocyanates 1,6-hexamethylene diisocyanate successively.After adding vulcabond, start violent exothermic reaction, cause reaction temperature to raise rapidly, improve the viscosity of reactant mixture simultaneously.In such a scenario, reach be similar to constant temperature maximum after pour out reactant mixture.The content of metal bucket is poured among mold that Teflon film forms, and to place it on the heating plate of 100 DEG C.At 100 DEG C of temperature after 30 minutes, mixture complete reaction.
Obtain the polyurethane that Shore hardness is 87 ° of A, melting range is 110-120 DEG C.
Embodiment 3
Prepare fabric
The basis weight formed 85% polyamide and 15% polyester according to known dual dot is 18g/m 2non-woven fabrics base material carry out coating process.Also film-forming polyesters polyurethane (coated weight: 2.5g/m is contained by except the common auxiliary agent containing emulsifying agent, thickener and processing aid and so on 2) adhesive be used for lower point.Fusing point is 108-116 DEG C and MFI value is 25 (g/10 minute, temperature 160 DEG C/load 2.16kg) aliphatic polyester polyurethane shed on also moist lower point as on point, suck excess powder, then dry (coated weight: 5g/m at 185 DEG C of temperature 2).Similar, point under palyacrylate binder is coated in identical substrate, then sheds polyamide powder.The fusing point of polyamide is 108-112 DEG C, MFI value is 49 (g/10 minute, temperature 160 DEG C/load 2.16kg).At 120 DEG C of temperature through 12 seconds and with 2.5bar pressure make these linings fuse (press: Multistar 1000 CU).The cloth used is cloth (the J.L.Ball article No.: 31198) scribbling polyurethane.Following table is depicted as initial peeling force, the anti-stratification forces after dry cleansing and the anti-stratification forces after 60 DEG C of washings.
? Polyamide paste system PU paste system
Initial bonding strength 0.7 10.7
1x drying cleaning 0.4 8.7
1x 60 DEG C washing 0.2 9.5
Table 1
Embodiment 4
Prepare the fabric based on non-woven fabrics
Be X g/m according to known dual dot to the basis weight that 100% polyester is formed 2non-woven fabrics base material carry out coating process.Also film-forming polyesters polyurethane (coated weight: 1.8g/m is contained by except the common auxiliary agent containing emulsifying agent, thickener and processing aid and so on 2) adhesive be used for lower point.Fusing point is 98-108 DEG C and MFI value is 56 (g/10 minute, temperature 160 DEG C/load 2.16kg) aliphatic polyester polyurethane shed on also moist lower point as on point, suck excess powder, then dry (coated weight: 5.4g/m at 185 DEG C of temperature 2).Similar, use the thermoplastic polymer based on polyamide and polyester to be coated in identical substrate by point under palyacrylate binder, then shed polyamide powder.The fusing point of polyamide is 108-112 DEG C, MFI value is 49 (g/10 minute, temperature 160 DEG C/load 2.16kg).At 120 DEG C of temperature through 12 seconds and with 2.5bar pressure make these linings fuse (press: Multistar 1000 CU).The cloth used is except coating fabric (J.L.Ball article No.: 31050), also the conventional fabric based on polyester/cotton (65%/35%) has been selected, this fabric is the standard fabric used in laboratory, because this fabric is representative for wide variety of conventional fabric.Following table is depicted as the initial peeling force on two kinds of fabrics and the peeling force after 60 DEG C of washings.
Table 2
As can be seen from the above embodiments, the polyurethane compositions system of customization can not only be difficult to the coating fabric fused improve bonding force, and equally also can realize on the non-coating fabric of routine and common polyamide or at least suitable performance of polyester system.
Embodiment 5
Prepare the fabric based on looped fabric
Be 22g/m according to known dual dot to basis weight 2knitted fabric (100% polyester) carry out coating process.Use on the one hand and comprise point and polyamide under thermoplasticity and shed " standard " paste system of powder, use on the other hand and to put under comprising polyurethane binder and aliphatic polyester polyurethane sheds the double dot system of powder.By blending, the slurry of the common auxiliary agent of emulsifying agent, thickener and processing aid and so on is used for lower point.If point under thermoplastic adhesives, then slurry is except comprising acrylic ester adhesive, also comprises the thermoplastic polymer based on polyamide and polyester.Lower point sprinkles fusing point and is 113 DEG C and MFI value is that the polyamide of 71 (g/10 minute) (temperature 160 DEG C and load is measure under the condition of 2.16kg) is as upper point.TPU slurry, except containing except standard ingredient, also contains the adhesive component of aliphatic polyester polyurethane dispersion.Here coat that fusing point is 112 DEG C, MFI value is 25 (g/10 minute) thermoplastic aliphatic polyester's polyurethane of (being 1690 DEG C and load measures under being the condition of 2.16kg in temperature) sheds powder as upper point.
Put binder paste coat 2.5g in coating procedure under, then sprinkle 5g powder.At 130 DEG C of temperature through 12 seconds and with 2.5bar pressure make these lining cloth fuse (press: Kannegiesser EXT 1000 CU).The cloth used is fabric (the J.L.Ball article No.: 31198) scribbling polyurethane.Following table is depicted as initial anti-stratification forces, the anti-stratification forces after dry cleansing and the anti-stratification forces after 60 DEG C of washings.
Table 3
Even if but on the uncoated fabric of " routine ", polyurethane also has with known such as based on the bonding force that the polymeric system of polyamides or polyester is similar.
Embodiment 6
Measure air penetrability
According to EN ISO 9237, there is following difference:
-do not nurse one's health
-DIN 50014/ISO 554 specified standard weather
The unit dm of-result of the test 3/ s*m 2
Testing equipment: Textex FX 3300
Test pressure: 50Pa, 100Pa or 200Pa
Specimen width: 10cm
Two kinds of polyurethane coated fabrics being difficult to fuse and two kinds are used conventional uncoatedly to carry out air penetrability measurement with reference to fabric.Following table is depicted as measurement result:
Table 4
As can be seen from measurement result, two kinds of fabrics through coating all have the air penetrability more much smaller than two kinds of uncoated shell fabrics.The smooth functional coating closed almost can stop air permeable.Smooth functional layer can make the extremely difficult bonding in surface.Described superficial layer can be made up of various different material, such as, based on polyurethane, fluorine carbon or organosilyl material.
Embodiment 7
Measurement delay
Following variable is used to test on lasting room machinery:
Non-woven fabrics draw direction: laterally
Specimen width: 50mm
Clamping length: 200mm
Pre-applied force: 0.05N
Speed loop: 500mm/ minute
Experimental condition: 22 DEG C/50% relative humidity
Basis weight that dual dot carries out coating process, that be made up of 85% polyamide and 15% polyester is being used to be 18g/m 2three non-woven fabrics samples on carry out delayed measurement.Measure transverse elasticity.The system that under use polyurethane binder, point and polyurethane compositions are formed carries out coating process to lining cloth 1.Lining cloth 2 is put and point on polyamide under having acrylate.Use 7.5g/m 2sizing material (2.5+5g/m 2) coating process is carried out to these two lining cloth.Lining cloth 3 is equivalent to lining cloth 1 in its coating, and only coated weight rises to 11g/m 2(5+6g/m 2).
Lasting room machinery carries out delayed measurement to fabric of the present invention in two ways:
1) closed hoop position adjustments 25% percentage elongation (upper flex point) at the most
2) closed hoop power is adjusted to many 2N (upper flex point)
Table 5-7 is depicted as measurement result.
About 1) can obviously find out in closed hoop position adjustments process, the lining cloth 1 comprising polyurethane compositions system has much smaller permanent elongation, and elasticity is obviously greater than the lining cloth 2 comprising polyamide sizing material.Obviously can find out that the permanent elongation of lining cloth 2 is much higher, and this value not only in single circulation but also 5 cycle periods to reduce largely.The permanent elongation of lining cloth 1 then only has very little change in cycle period.Coated weight (lining cloth 3) also by improving polyurethane compositions system strengthens this two kinds of effects.
About 2) in closed hoop power control procedure, can be observed identical effect.The permanent elongation of lining cloth 2 is much higher than the lining cloth 1 and 3 scribbling polyurethane.During 5 times are measured series, the permanent elongation of lining cloth 2 is 15-20%, obviously higher, and the degree reduced within one-shot measurement circulation is also better than the lining cloth 1 and 3 scribbling polyurethane.(experiment curv moves right).Confirm equally again the elasticity enhancement effect (comparing lining cloth 1 and lining cloth 3) that the polyurethane point coating improving elastic reaction causes.
Table 8-10 is depicted as measurement result.
The delayed measurement of lining cloth 1
Table 5
The delayed measurement of lining cloth 2
Table 6
The delayed measurement of lining cloth 3
Table 7
The delayed measurement of lining cloth 1
Table 8
The delayed measurement of lining cloth 2
Table 9
The delayed measurement of lining cloth 3
Table 10

Claims (16)

1. hot melt adhesive fabric, especially in textile industry, adhesion lining cloth is used as, it has the basalis that textile material is formed, described basalis scribbles sizing material structure, it is characterized in that, described sizing material structure comprises polyurethane hot melt adhesive composite, and described polyurethane hot melt adhesive composite contains the thermoplastic polyurethane of following substance reaction Product Form:
At least one difunctionality polyisocyanates (A), be preferably aliphatic, alicyclic or aromatics, isocyanate content is 5-65 weight portion, with
At least one polyalcohol (B), described polyalcohol is selected from copolymer of PEPA, PPG, polycaprolactone polyol, polycarbonate polyol, polycaprolactone polyol and polytetrahydrofuran polyol and composition thereof, and optional with
At least one chain extender (C).
2. hot melt adhesive fabric according to claim 1, it is characterized in that, described polyalcohol (B) is selected from PEPA that molecular weight is 400g/mol-6000g/mol, polycarbonate polyol that polycaprolactone polyol that PPG that molecular weight is 400g/mol-6000g/mol, molecular weight are 450g/mol-6000g/mol, molecular weight are 450g/mol-3000g/mol, molecular weight be the polycaprolactone polyol of 800g/mol-4000g/mol and the copolymer of polytetrahydrofuran polyol and composition thereof.
3. the hot melt adhesive fabric according to any one of the claims, is characterized in that, described difunctionality polyisocyanates (A) comprises the C that isocyanate content is 5-65 weight portion 4-18aliphatic series, C 6-20alicyclic and/or C 6-20aromatic diisocyanates.
4. the hot melt adhesive fabric according to any one of the claims, it is characterized in that, described chain extender is selected from ethylene glycol, 1,2-propane diols, 1,3-PD, BDO, 1,3-butanediol, 2,3-butanediol and isomer mixture, 1,5-PD and isomers thereof, cyclohexanedimethanol (CHDM), 1,6-hexylene glycol and isomers thereof and said mixture.
5. the hot melt adhesive fabric according to any one of the claims, is characterized in that, component A, B and C react having under at least one catalyst, at least one hydrolysis-resisting agent and/or at least one age resister existent condition.
6. the hot melt adhesive fabric according to any one of the claims, is characterized in that, component A, B and C react with corresponding to 0.7-1.0, preferably 0.9-1.0 and the more preferably number ratio of A and the B+C of the mol ratio of NCO and the OH of 0.94-0.98.
7. the hot melt adhesive fabric according to any one of the claims, is characterized in that, component A, B and C react with corresponding to 0.7-1.0, preferably 0.8-0.9 and the more preferably number ratio of A and the B+C of the mol ratio of NCO and the OH of 0.85-0.89.
8. the hot melt adhesive fabric according to any one of the claims, is characterized in that, the melting range of described thermoplastic polyurethane hot melt adhesive composition between 60 DEG C-190 DEG C, and preferably between 100 DEG C-140 DEG C.
9. the hot melt adhesive fabric according to any one of the claims, is characterized in that, textile material is that tatting is weaved cotton cloth, knittingly to be weaved cotton cloth or non-woven fabrics.
10. the hot melt adhesive fabric according to any one of the claims, it is characterized in that, sizing material structure is designed to double-deck sizing material structure, and it comprises the bottom be directly laid on fabric, and to be arranged on described bottom and to comprise the top layer of thermoplastic polyurethane sizing material.
11. hot melt adhesive fabrics according to any one of the claims, it is characterized in that, bottom contains fusing point and is greater than the polyurethane of 190 DEG C as adhesive, and/or containing the thermoplastic polyurethane that fusing point is less than 190 DEG C.
12. hot melt adhesive fabrics according to any one of the claims, it is characterized in that, be different from the thermoplastic polymer based in (being total to) polyester, (being total to) polyethers, (being total to) polyamide, polyolefin, ethylene vinyl acetate of thermoplastic polyurethane, and/or comprise the combination (mixture and copolymer) of described polymer.
13. hot melt adhesive fabrics according to claim 10 or 11, it is characterized in that, described adhesive based on acrylate, styrene-acrylate, ethylene vinyl acetate, butadiene-propylene acid esters, SBR, NBR and/or polyurethane, or comprises the mixture of these adhesives.
14. methods preparing hot melt adhesive fabric according to any one of claim 1-12, comprise following methods step:
A) basalis is provided,
B) by surf zone selected by the sizing material structural applications that comprises polyurethane hot melt adhesive composite to basalis, described polyurethane hot melt adhesive composite contains the thermoplastic polyurethane of the product form of following material:
At least one difunctionality polyisocyanates (A), isocyanate content is 5-65 weight portion, with
At least one polyalcohol (B), described polyalcohol is selected from copolymer of PEPA, PPG, polycaprolactone polyol, polycarbonate polyol, polycaprolactone polyol and PolyTHF and composition thereof, also alternatively with
At least one chain extender (C), and
C) to from step b) basalis that obtains heat-treats, is sintered together by thermoplastic polymer sintering on substrate surface or with it.
15. use fabric according to any one of claim 1-12 as the method for the lining cloth of fusion on fabric, and it preferably has and is less than 100dm under 200Pa test pressure 3/ s*m 2air penetrability.
16. methods according to claim 15, is characterized in that, fabric at least has the coating based on organosilicon, fluorine carbon or thermoplastic polyurethane in the one side of lining cloth.
CN201380024600.5A 2012-05-08 2013-05-03 Hot melt adhesive fabric Active CN104302199B (en)

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AR091811A1 (en) 2015-03-04
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DE102012009055B4 (en) 2015-06-03
DE102012009055A1 (en) 2013-11-14

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